can they go to far

Hi people . Got a prob . My 3 afghans have been 9 weeks into flowering . And they r not ready .. the triochomes r still not amber . And the hairs r still milky about 20 % r redish. .what will I do keep it going .. can I over flower it or the longer rue better . Don't no what to do . Help plz

seems like a crazy long flower for an afghan, I bet something in their condition is slowing it. Too low a temperature during the lights off cycle maybe?
If they're forming and the plants still doing good then no worries tho, they'll finish up

Eight to ten weeks is the average time for most strains, but each plant is a little bit different. Some may finish at six or seven weeks, others might finish at eleven weeks. Unless it's a clone, you'll never really know when it's ready unless your looking at the leaves under a microscope. Trust what your seeing and not what the website you bought it from says. Also make sure your checking multiple spots. Your looking for an average of 50% milky and 50% amber.